/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlineSessionInterface.h
virtual [FDelegateHandle](API\Runtime\Core\Delegates\FDelegateHandle) AddOnFindFriendSessionCompleteDelegate_Handle ( int32 LocalUserNum, const [FOnFindFriendSessionCompleteDelegate](API\Plugins\OnlineSubsystem\Interfaces\FOnFindFriendSessionCompleteDele-) & Delegate )